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l pollution is a hard problem to be coped with.2. At the sound of footsteps outside the window, I stole out of the room, but there was nothing to be seen.10. The only way to deal with her is not to give an inch.18. …supposed her to be a widow.2. …assumed the construction of such a building to be impracticable whereas…believed it to be perfectly feasible.10. …that the situation is now under control.18. …that his evidence had been perjured.26. …that their candidate was unacceptable to them.30. …that it was likely…22. …thought it to be impossible…14. …found the overhead projector to be invaluable as a teaching aid.6. I need a box to hold the chessmen.14. I’ve spent two days here. There is nothing to see.6. This is a day never to be forgotten.14. Their readiness to accept the peace arrangement really surprised the diplomatic world.6. Our house is difficult to heat.14. I was afraid to go…6. Bob was pleased to hear…7. The clerk was prompt to answer the call.11. We are proud to have him as a friend.19. He refused the invitation to write anoth